SDO HMI 2011-11-20 13:58:57 UT
See sunspots with tool (Click here to study sunspot positions and configurations with tool using white-light and magnetogram images and polarity drawing)
(It is recommended to set high resolution on your display!)
| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 35.68 | 237.70 | 66.37 | 479.28 | 15.94 | 228.03 | -75.49 | 74.09 | 0.9659 | -277.5 | -27.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-11-20 13:58:57 UT
See sunspots with tool (Click here to study sunspot positions and configurations with tool using white-light and magnetogram images and polarity drawing) (It is recommended to set high resolution on your display!) |
| spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 16.04 | 121.34 | 23.01 | 176.83 | 14.21 | 233.82 | -69.71 | 75.68 | 0.9399 | -657.0 | -154.4 | |
| 5.49 | -1.00 | 8.13 | -1.00 | 14.21 | 233.09 | -70.44 | 75.71 | 0.9441 | -182.5 | 999999 | |
| 0.00 | 9.35 | 0.00 | 13.93 | 12.47 | 232.97 | -70.55 | 77.56 | 0.9443 | -99.0 | 22.0 | |
| 0.00 | 0.94 | 0.00 | 1.64 | 13.59 | 230.07 | -73.46 | 76.49 | 0.9596 | 218.0 | 159.5 | |
| 0.00 | 1.37 | 0.00 | 3.40 | 17.36 | 224.86 | -78.66 | 72.73 | 0.9809 | 235.0 | 220.3 | |
| 5.75 | 39.53 | 12.98 | 90.90 | 16.08 | 226.12 | -77.41 | 74.02 | 0.9765 | 318.8 | -12.7 | |
| 5.66 | 65.17 | 15.85 | 192.58 | 17.72 | 223.56 | -79.96 | 72.39 | 0.9849 | -339.3 | 61.5 | |
| 2.74 | -6.00 | 6.40 | -6.00 | 15.94 | 225.57 | -77.96 | 74.18 | 0.9784 | -275.3 | 999999 | |
| Proj. U | - Projected umbra area in millionths of solar disc, negative values indicate | |
|
that the umbra consists of fragmented regions which cannot be separated without losing umbral area. In this way several spots (intensity minima in the umbra) have a common umbra, e.g. -2 means that the given spot shares an umbra with spot No.2, and the common U value is indicated at spot No.2. |
||
| Proj. WS | - Projected whole spot area in millionths of solar disc, negative values indicate | |
|
that several umbras have a common penumbra, e.g. -7 means that the given umbra shares a penumbra with umbra No.7, and the WS value is indicated at No.7. |
||
| Corr. U | - Corrected umbra area in millionths of solar hemisphere, for negative values see above | |
| Corr. WS | - Corrected whole spot area in millionths of solar hemisphere, for negative values see above | |
| B | - Heliographic latitude B; positive: North, negative: South | |
| L | - Heliographic longitude L | |
| LCM | - Longitudinal distance from the Sun's central meridian | |
| Pos. angle | - Position angle | |
| r | - Distance from the centre of Sun's disc in terms of Sun's radius | |
| MU | - Mean magnetic field within the umbra contour averaged the pixel values with sign. | |
| MP | - Mean magnetic field within the penumbra contour averaged the pixel values with sign. | |